[Fleet] Support dataset with multiple level like system.process.summary

[nchaulet]

Summary

Resolve #92636

Currently when a datastream use a dataset with multiple dots we are not using the correct agent template.
We where looking to find the dastream by splitting the dataset name on . instead of using the datastream path property
That PR fix that.

How to test

You can try that PR elastic/integrations#778 run the package registry and you will get the correct
agent template for system.process.summary

[elasticmachine]

Pinging @elastic/fleet (Team:Fleet)

[nchaulet]

Should we backport this to 7.13?

[jen-huang]

1. Yes, this is a good 7.13 candidate.
2. Would this be fixed if Attempt to fix process summary name integrations#778 also exported path: process_summary? (It's still good to have a fallback in Kibana, aka this PR)

[nchaulet]

Would this be fixed if elastic/integrations#778 also exported path: process_summary? (It's still good to have a fallback in Kibana, aka this PR)

Actually the package registry populate the path elastic/package-registry#176 so I think we probably should only rely on that.

Just did a quick check against the snapshot registry and the dataset we computed before and the path match for all packages expect apm endpoint and synthetics where there is no agent data stream template.

✅ /package/apache/0.5.0
app_metrics app
error_logs error
internal_metrics internal
profile_metrics profiling
sampled_traces
traces
❌ /package/apm/0.2.0
✅ /package/auditd/0.1.1
✅ /package/aws/0.5.4
✅ /package/azure/0.2.3
✅ /package/barracuda/0.2.4
✅ /package/bluecoat/0.1.4
✅ /package/cef/0.1.0
✅ /package/checkpoint/0.5.2
✅ /package/cisco/0.8.1
✅ /package/crowdstrike/0.4.1
✅ /package/cyberark/0.1.4
✅ /package/cylance/0.1.4
✅ /package/docker/0.1.1
✅ /package/elastic_agent/0.0.7
collection diagnostic_collection
file events_file
library events_library
network events_network
process events_process
registry events_registry
security events_security
❌ /package/endpoint/0.19.1
✅ /package/f5/0.2.4
✅ /package/fleet_server/0.2.3
✅ /package/fortinet/0.8.1
✅ /package/gcp/0.0.2
✅ /package/google_workspace/0.2.4
✅ /package/haproxy/0.2.8
✅ /package/iis/0.3.2
✅ /package/imperva/0.1.4
✅ /package/infoblox/0.1.4
✅ /package/iptables/0.1.0
✅ /package/juniper/0.5.1
✅ /package/kafka/0.3.7
✅ /package/kubernetes/0.5.1
✅ /package/linux/0.3.10
✅ /package/log/0.4.6
✅ /package/microsoft/0.4.3
✅ /package/mongodb/0.2.9
✅ /package/mysql/0.3.7
✅ /package/nats/0.1.4
✅ /package/netflow/0.3.8
✅ /package/netscout/0.1.4
✅ /package/nginx/0.5.0
✅ /package/nginx_ingress_controller/0.0.3
✅ /package/o365/0.3.2
✅ /package/okta/0.5.0
✅ /package/osquery/0.1.2
✅ /package/osquery_manager/0.2.2
✅ /package/panw/0.7.1
✅ /package/postgresql/0.3.1
✅ /package/prometheus/0.3.4
✅ /package/proofpoint/0.1.4
✅ /package/rabbitmq/0.2.7
✅ /package/radware/0.1.4
✅ /package/redis/0.3.7
✅ /package/santa/0.0.3
✅ /package/security_detection_engine/0.0.2
✅ /package/snapshot/0.0.1
✅ /package/sonicwall/0.1.5
✅ /package/sophos/0.2.1
✅ /package/squid/0.1.4
✅ /package/staging/0.0.1
✅ /package/stan/0.1.3
✅ /package/suricata/0.6.0
✅ /package/symantec/0.1.2
http
icmp
tcp
❌ /package/synthetics/0.0.4
✅ /package/system/0.12.3
✅ /package/tomcat/0.1.4
✅ /package/traefik/0.1.1
✅ /package/windows/0.7.0
✅ /package/winlog/0.2.1
✅ /package/zeek/0.7.0
✅ /package/zookeeper/0.2.6
✅ /package/zoom/0.3.1
✅ /package/zscaler/0.1.4

[kibanamachine]

💚 Build Succeeded

• continuous-integration/kibana-ci/pull-request
• Commit: 775d285
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Metrics [docs]

Unknown metric groups

References to deprecated APIs

id	before	after	diff
infra	5	3	-2
monitoring	109	56	-53
total			-55

History

• 💚 Build #125430 succeeded 71dd2b1
• 💔 Build #125433 failed 1a8724c

To update your PR or re-run it, just comment with:
@elasticmachine merge upstream

cc @nchaulet

[nchaulet]

/run-fleet-e2e-tests

[kibanamachine]

💚 Backport successful

Status	Branch	Result
✅	7.13
✅	7.x

The backport PRs will be merged automatically after passing CI.